期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 342, 期 1, 页码 147-154出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2009.10.010
关键词
Water purification; Thermally activated hydrotalcites; Seawater neutralised red mud
资金
- Queensland Research and Development Centre (RioTintoAlcan)
- School of Physical and Chemical Sciences
The effectiveness of using thermally activated hydrotalcite materials has been investigated for the removal of arsenate, vanadate, and molybdate in individual and mixed solutions. Results show that increasing the Mg,Al ratio to 4:1 causes an increase in the percentage of anions removed from solution. The order of affinity of the three anions analysed in this investigation is arsenate, vanadate, and molybdate. By comparisons with several synthetic hydrotalcite materials, the hydrotalcite structure in the sea-water neutralised red mud (SWN-RM) has been determined to consist of magnesium and aluminium with a ratio between 3.5:1 and 4:1. Thermally activated seawater neutralised red Mud removes at least twice the concentration of anionic species than thermally activated red mud alone, due to the formation of 40-60% Bayer hydrotalcite during the neutralisation process. (C) 2009 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据